Porsche 718 Cayman GT4RS 2023 Owner's Manual page 207

g Refer to chapter "Removing and installing converti-
ble top" on page 40.
Fig. 179: Coolant reservoir 718 Spyder RS
Fig. 180: Coolant reservoir 718 Cayman GT4 RS
b Vehicle is level.
b Engine is cold and the coolant temperature gage
is below 140 °F / 60 °C.
b Symbol
or with a message to refill the
coolant is shown in the multifunction display.
If no symbol or was displayed
multifunction display, the MIN and MAX marking
of the coolant indicator serve as a measure for
refilling.
1. Turn cap counter-clockwise and remove
(Fig. 179) (718 Cayman GT4 RS).
2. Carefully screw off the coolant reservoir cap and
allow any excess pressure to escape.
3. Unscrew the cover completely.
4. Read off the coolant level. The coolant gauge
must be between the MIN and MAX marks on a
cold engine with the vehicle level).
5. Add coolant if necessary. Only use a mixture
consisting of equal parts of antifreeze and distil-
led water.
Amount of freeze protection agent in coolant:
50% results in freeze protection up to –34 °F
(37 °C). If the coolant indicator is at the MAX
marking, the maximum fill level is reached.
6. Do not fill above the MAX mark. The MAX mark-
ing serves only as a guide because the fill level
drops after the first engine start. Screw the cap
on the coolant reservoir closed until you feel it
reach the end stop.
7. Put on cap and turn clockwise (Fig. 179) (718
Cayman GT4 RS).
8. Have the cooling system checked. Visit an au-
thorized Porsche dealer. Porsche recommends
an authorized Porsche dealer, as they have
trained technicians and the necessary parts and
tools.
Information
on the
If pure water was added in an emergency, the mixing
ratio must be corrected. Significant coolant loss indi-
cates leaks in the cooling system.
e
Have the cause remedied immediately. Visit an
authorized Porsche dealer. Porsche recommends
an authorized Porsche dealer, as they have
trained technicians and the necessary parts and
tools.
Roadside Assistance
205